Endless songs are written about these men our fathers would certainly not approve of, but whether we simply daydream about these rebellious romantics, (hello, Eric Northman), or actually pursue them is another matter entirely.
Only one thing is for sure, at some point in our lives we will find ourselves attracted to someone who strays a little on the naughty side.
Over the next few months, I will make an attempt to sort out those ATP players you'd take home to meet your mother from those you... This week's bad boy actually has a reputation as a gentle, family-orientated lad from a small town in Argentina.
But behind the half-smile and friendly demeanor is a man not afraid to get what he wants.
They don't drink, they don't smoke and they certainly don't resemble James Dean (or Deen, if you prefer).